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Author Sloten, J Vander. Van Audekercke, R. Van Der Perre, G. Institution Katholieke Universiteit Leuven, Heverlee, Belgium
Source Industrial Ceramics. v 20 n 2 May 2000. p 109-111.
Abstract Advances in computer technology, and the concurrent improvements in computer aided engineering software have set new standards in the design of prostheses. We distinguish between two large areas: standard or off-the-shelf prostheses and custom-made prostheses. In the area of standard implants the design process benefits from the availability of a number of bone geometries in the digital format, hence allowing to evaluate the fit and fill of newly designed implants at an early stage in the design cycle and optimise the product mix of device sizes. Numerical evaluation of load transfer, strength of the implant and stability of fixation are other advantages. Until recently custom-made implants could only be produced at a major extra cost, and its use was restricted to restorations of large bone defects (e.g. after tumour resections) or in cases of congenital deformations of the bones. Advances in information technology allow nowadays to transfer digital medical images of a patient's skeleton into com puter-aided design softwares, thus allowing a fast and even semi-automatic design of an implant fitting a particular bone. Rapid prototyping technology can then be used for a cost-effective production of this one of a kind product. (Auth abstract) [References: 20] XX